Abstract Birch by Martin Bailey | Jan 26, 2014 | 0 comments Abstract Birch This is a Tony Sweet technique – you pan the camera downwards with a longish shutter speed. I love this effect! Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Δ This site uses Akismet to reduce spam. Learn how your comment data is processed.